<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        table {
            width: 400px;
            border: 1px solid #000;
            border-collapse: collapse;
            margin: 0 auto;
        }

        td,
        th {
            border: 1px solid #000;
            text-align: center;
        }

        input {
            width: 50px;
        }

        .search {
            width: 600px;
            margin: 20px auto;
        }
    </style>
</head>

<body>
    <div class="search">
        按照价格查询: <input type="text" class="start"> - <input type="text" class="end"> <button
            class="search-price">搜索</button> 按照商品名称查询: <input type="text" class="product"> <button
            class="search-pro">查询</button>
    </div>
    <table>
        <thead>
            <tr>
                <th>id</th>
                <th>产品名称</th>
                <th>价格</th>
            </tr>
        </thead>
        <tbody>


        </tbody>
    </table>
    <script>
        var data = [{
            id: 1,
            pname: '小米',
            price: 3999
        }, {
            id: 2,
            pname: 'oppo',
            price: 999
        }, {
            id: 3,
            pname: '荣耀',
            price: 1999
        }, {
            id: 4,
            pname: '华为',
            price: 4999
        }];
        //1.获取元素
        var tbody = document.querySelector('tbody');
        var search_price = document.querySelector('.search-price');
        var start = document.querySelector('.start');
        var end = document.querySelector('.end');
        var product = document.querySelector('.product');
        var search_pro = document.querySelector('.search-pro');
        setDate(data);
        //2.利用forEach渲染到页面
        function setDate(mydata) {
            //先清空原来tbody里面的 数据
            tbody.innerHTML = '';
            mydata.forEach(function (value) {
                var tr = document.createElement('tr');
                tr.innerHTML = '<td>' + value.id + '</td><td>' + value.pname + '</td><td>' + value.price +
                    '</td>';
                tbody.appendChild(tr);
            });
        }
        //3.利用filter根据价格查询商品 点击按钮查询
        search_price.addEventListener('click', function () {
            // alert(11);
            var newData = data.filter(function (value) {
                return value.price >= start.value && value.price <= end.value;
            });
            // console.log(newData);
            //把筛选后的对象渲染到页面中
            setDate(newData);
        });
        //4.利用some()根据商品名称查询 元素唯一
        search_pro.addEventListener('click', function () {
            var arr = [];
            data.some(function (value) {
                if (value.pname === product.value) {
                    // console.log(value);
                    arr.push(value);
                    return true;
                }
            });
            //把拿到的数据渲染到页面
            setDate(arr);
        });
    </script>
</body>

</html>